Question 1127485
s=(1/2)at^2=(1/2)9.8 m/sec^2*t^2=25
50=9.8m/sec^2*t^2
t^2=5.10 sec^2't=2.26 sec ANSWER b

v=gt=9.8 m/sec*2.28 sec=22.344 m/sec  ANSWER a